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EOD US-equity data for investors and AI agents

Data is end-of-day, not real-time, and not investment advice

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UMC short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float1.6%2,164,502,000 float shares
Days to Cover1.917,966,337 average daily volume
Open Short Position34,193,634United Microelectronic Corp.
Change vs Previous+13,682,047+66.7%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 202634,193,634+13,682,047+66.7%1.91.6%
Jul 15, 202620,511,587-5,665,572-21.6%1.20.9%
Jun 30, 202626,177,159+846,149+3.3%1.31.2%

Short interest is an open-position snapshot published twice monthly. It is not daily short-sale volume.

Daily off-exchange short volume

FINRA-reported short-sale transaction flow for the last 30 calendar days.

Trade DateShort VolumeShort ExemptFINRA TotalShort Volume %Facilities
Aug 21, 2026908,01311,714,56453.0%3
Aug 20, 20261,303,8587532,219,56058.7%3
Aug 19, 20262,396,0794,4002,905,97482.5%3
Aug 18, 20261,827,0855,5012,977,01461.4%3
Aug 17, 20261,155,4892471,798,94864.2%3
Aug 14, 2026589,951991,591,72037.1%3
Aug 13, 2026921,00201,641,91856.1%3
Aug 12, 20261,419,02113,9872,654,06753.5%3
Aug 11, 20261,007,666622,109,09247.8%3
Aug 10, 2026778,3672831,985,60939.2%3
Aug 7, 20262,131,5401103,687,93257.8%3
Aug 6, 20261,539,0571,4302,752,96155.9%3
Aug 5, 20262,300,6382,1153,414,67967.4%3
Aug 4, 20263,238,1161424,380,29873.9%3
Aug 3, 20261,966,2681,7503,071,53264.0%3
Jul 31, 20262,483,2985,6173,619,73868.6%3
Jul 30, 20263,548,2881,3155,698,88062.3%3
Jul 29, 20263,814,44332,7207,246,64752.6%3
Jul 28, 20263,017,64135,8847,684,51039.3%3
Jul 27, 20261,736,2846,7883,170,87554.8%3
Jul 24, 20261,905,87212,6153,477,30954.8%3

Daily short volume is transaction flow reported through FINRA facilities. It does not measure open short positions and is not consolidated exchange-wide volume.